Question
The letter 'D' in carbohydrates signifies
The letter 'D' in carbohydrates signifies
B. configuration
The letters 'D' and 'L' before the name of carbohydrates represent the relative configuration of the molecule with respect to glyceraldehyde. It does not indicate the optical activity (dextrorotatory or laevorotatory), which is represented by (+) or (-) signs respectively. Therefore, 'D' signifies configuration.
Related: Chemistry — Biomolecules · All PYQ Banks